How To Fix UCF8051 - Automatic line items contain an error; posting is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: UCF8 - Messages for Manual Journal Entry

• Message number: 051

• Message text: Automatic line items contain an error; posting is not possible

What causes this issue?

Posting is not possible because the automatic line items contain errors.
The original and automatic line items are not consistent since the
characteristics have been changed.

System Response

The document cannot be posted.

How to fix this error?

Start the manual posting task again and re-enter the original line
items. Then you can generate the automatic line items correctly,
enabling the document to be posted.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCF8051 - Automatic line items contain an error; posting is not possible ?

  The SAP error message UCF8051, which states "Automatic line items contain an error; posting is not possible," typically occurs during the posting of financial documents when there are issues with the automatic line items generated by the system. This error can arise in various contexts, such as during the posting of invoices, payments, or other financial transactions.
  Causes:
  
  Incorrect Account Assignment: The automatic line items may reference accounts that are not valid or are not set up correctly in the system.
  Missing or Incorrect Configuration: The configuration for automatic postings (e.g., in the Financial Accounting module) may be incomplete or incorrect.
  Currency Issues: There may be discrepancies in currency conversion or currency settings that prevent the posting from being completed.
  Document Type Issues: The document type being used may not be configured to allow the type of posting being attempted.
  Missing Master Data: Required master data (e.g., vendor or customer accounts) may be missing or incorrectly set up.
  Posting Period Issues: The posting period may be closed or not open for the transaction being attempted.
  
  Solutions:
  
  Check Account Assignments: Review the account assignments in the document to ensure they are valid and correctly configured.
  Review Configuration: Check the configuration settings for automatic postings in the Financial Accounting module. Ensure that all necessary settings are correctly defined.
  Validate Currency Settings: Ensure that the currency settings are correct and that any necessary currency conversion is properly configured.
  Document Type Configuration: Verify that the document type being used is configured correctly for the type of transaction you are trying to post.
  Master Data Verification: Ensure that all required master data is present and correctly set up in the system.
  Check Posting Period: Confirm that the posting period is open for the transaction you are attempting to post. If it is closed, you may need to open it or use a different period.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like FB50, FB60, or F-02 to review and attempt to post documents.
  Error Logs: Check the error logs or the document log for more detailed information about the specific line items causing the error.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to this error message.
  Consult Documentation: Review SAP documentation or help files related to automatic postings and financial document processing for additional guidance.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Financial Accounting within SAP.